New aircraft types will close the gaps, not more versions of models we already have.
That said, I also understand the desire to have multi-LOD, repaint friendly versions of some of the older aircraft.:costumed-smiley-034
My additions to the list would be:
Kyushu K11W Crysanthemum trainer/ kamikaze (798 made) I don't think it's ever been made for any version of FS or CFS.
Mitsubishi Ki-21 Sally (early, late & converted transport - total 2064 made) perhaps from Wolfis Ki-57 files. At least we'd have something multi LOD & repaint friendly. At the moment we have a Pakayan converted from FS8/9 (early) & Bruno Duffort's (late), but BR won't allow repaints or mods.:dejection: